While you do all you can to provide your child healthy meals and snacks at home, they still face tempting choices for unhealthy fare when they’re away. Unfortunately, their school campus could be one of those places with food choices that raise their risk for dental disease.

Thankfully, that situation is beginning to change. The U.S. Department of Agriculture (USDA) issued regulations a few years ago tightening minimum health standards for snacks available on school grounds. Called the Smart Snacks in Schools initiative, it promotes whole grains, fruits, vegetables and low-fat dairy products, while discouraging snacks with empty calories, fat, sugar and excessive salt. This is good news in particular for preventing tooth decay in children and teenagers.

Unfortunately, the initiative may not go far enough. There are a few “loopholes”: it allows for chocolate milk with added sugar as long as it’s fat-free; high schools can also sell beverages like sports and energy drinks, which are low in sugar but high in enamel-harming acid. So, although the general nutrition of snacks in schools may be improving, you should still remain alert to poor choices that may fall through the cracks.

For one thing, you can advocate for better nutrition policies in your child’s school. The USDA initiative is a minimum standard — schools can exceed them and eliminate borderline snacks allowed under the federal regulations.

You can also provide your child snack alternatives to the school vending machine. A little creativity and fun can go a long way: a dash of cinnamon or parmesan cheese on popcorn instead of butter; finger sandwiches made of real cheese on whole-grain bread (with some whimsical shaping with a cookie-cutter); or bite-sized fruits and vegetables like grapes, baby carrots or nuts. The more healthy (and enjoyable) snacks you can send with them, the less chance they’ll turn to a less nutritious choice in the vending machine.

A healthier approach to snacking depends on setting good examples, providing ample selections and accentuating the positive about healthy foods. Choosing nutritious foods, at home and away, is a key building block for healthy teeth and gums.